Boiler Replacement in the Northwest & West Suburbs
Pure Comfort replaces hot-water boilers with cast-iron and high-efficiency condensing models from Lennox, Weil-McLain, Peerless and Crown. We size each boiler to your home’s heat loss and existing radiators, then rework the near-boiler piping, venting and controls. Replacement is usually worth it when a boiler is 20 to 30 years old, leaking or needing repeated repairs.
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Boiler Not Heating?
Fast, honest boiler repair from a family-owned Streamwood team.
- $75 diagnostic ($99 evenings, weekends & holidays)
- 24/7 emergency service, with same-day appointments available
- Trucks stocked with common boiler parts, so most repairs are done in one visit
- Upfront, flat-rate pricing before any work starts
Time for a New Boiler?
Free in-home replacement estimates from a Lennox Premier Dealer.
- Good, Better and Best options with upfront pricing
- Nicor Gas rebates applied where you qualify
- Financing available, including 0% APR on select Lennox systems during Lennox promotions
- Sized with a load calculation, installed and permitted
When Does Boiler Replacement Make Sense?
Boiler replacement makes sense when repairs keep adding up, the boiler is leaking, it struggles to heat the home or it is near the end of its service life. These are the signs that make an evaluation worth booking early.
- Repairs keep repeatingThe same call every winter, or a third repair in two seasons, usually points past the failed part itself.
- Heat reaches unevenlySome rooms never warm properly while others run hot, and balancing has not resolved it.
- Efficiency has droppedGas use climbs season on season while the house feels the same or slightly worse.
- Piping needs work anywayWhen the distribution or controls need correcting regardless, doing it alongside a replacement often costs less.
- Parts are hard to sourceOlder boilers reach a point where components are no longer supported and repairs become uncertain.
- A major component failedA heat exchanger or similar failure on an older boiler changes the arithmetic considerably.
Repair makes sense when the failure is isolated and the boiler, piping and venting remain in good condition. Pure Comfort evaluates the complete system before recommending a direction.
How Do We Plan and Install a New Boiler?
We plan a new boiler with a heat-loss calculation and radiation survey, then install, test and walk you through the system. Capacity follows the home and its distribution system, not the label on the old boiler.
- Evaluate the system. We review heating demand, existing piping, radiators or baseboard, zones, pumps, venting, gas, electrical service and controls.
- Install and connect. Our in-house team installs the equipment, then connects the distribution system and the controls that operate it.
- Fill and commission. We fill, purge and test, verifying temperature, pressure, circulation, safety operation, venting and zone response.
- Walk you through. The final walkthrough covers the controls, maintenance intervals and the applicable warranty information.
Should You Repair or Replace Your Boiler?
We compare condition, history, repair cost, comfort and project scope across the complete hydronic system.
An isolated failure on sound equipment
Repair makes sense when the failure is isolated and the boiler, piping and venting remain in good condition.
A major repair plus wider changes
Replacement becomes more practical when a major repair is combined with repeated service, poor heat distribution or an installation needing wider changes.
The Four Things We Weigh
Boiler, piping and venting
The parts that cannot be swapped cheaply decide whether a repair is worth making at all.
How often it has needed service
A pattern of repeated calls changes the value of the next repair considerably.
How well heat is distributed
Uneven heat that balancing cannot fix belongs in a replacement conversation, not another repair.
What the project would involve
If piping or controls need changing regardless, combining the work usually costs less overall.
Boiler Knowledge Rooted in Field Experience
Gene first learned the trade helping his father with boilers and water heaters, and that background still shapes how we evaluate hydronic systems.
- Hands-on background. Boilers were part of Gene's first years in the trade, before Pure Comfort was founded in 2008.
- Beyond the cabinet. Circulation, zones, controls and venting all get attention, not just the boiler itself.
- In-house installation. The crew on your project works for Pure Comfort. Hydronic work is never subcontracted.
- Properly commissioned. Commissioning confirms that heat actually reaches the home as intended before we call it finished.
Boiler and Control Options
Boiler systems vary by fuel, efficiency, venting, water temperature, pump arrangement and control strategy. The right setup depends on the home’s emitters, piping and heating load.
Zone controls and thermostats may also be updated when doing so improves operation or replaces components that are no longer supported.
What We Compare
The choices that actually change how the system performs.
- Efficiency and venting arrangement
- Water temperature and emitter match
- Pump arrangement and circulation
- Zone layout and control strategy
- Thermostat compatibility
- Warranty coverage on parts and labor
What Financing, Rebates and Warranties Are Available?
Yes. Qualifying boiler projects can use financing, and as of October 2026 Nicor Gas offers $350 for 95%+ AFUE boilers and $500 for combination boilers. Service Finance is the primary source used for Lennox promotions, with other options available when appropriate.
Rates, terms and rebate amounts change, so we confirm what applies to the selected equipment before you decide. Actual warranty coverage depends on the model, manufacturer requirements and selected labor coverage.
0% APR
Up to 60 Months
On select Lennox systems during Lennox promotions. Terms vary by system, subject to credit approval.
Free
Replacement Estimates
In-home, in writing, with no obligation.
Hydronic Replacements in Older Local Homes
Boiler replacement in the older housing stock across Streamwood and the surrounding suburbs usually means working with piping and zoning that has been modified several times over the decades.
Planning around what is actually there, rather than what the drawings suggest, is what makes the difference between a system that heats evenly and one that does not.
Real Reviews. Real Comfort.
When you need HVAC due to an unexpected event you want someone who not only can provide the service you need….
Great service. Very professional. They try all avenues to resolve issues with equipment. Always a pleasure to work….
Had an issue with the thermostat reading erroneously, as soon as I contacted Pure Comfort, they got back….
Our serviceman, Gene, was very responsive, professional and thorough. He explained each aspect of the issue clearly and….
I called them at 7am with no heat, the only available spot they had was in the afternoon, 5 minutes later they called….
Gene was professional, on-time, very friendly and did a thorough job inspecting our A/C unit. He also checked….
Quick and honest service and advice last minute on a Sunday. Clean crew and equipment. Gene was a knowledgeable….
Gene did not give up on the problem. It was a crazy situation but he never gave up found the problem and fixed it. Thank you….
Furnace wasnt working. Called Pure Comfort after hours and they came right out and helped me. The furnace….
Very professional, definitely knowledgeable had the furnace fixed in 10 minutes. I can honestly say I trusted Gene….
Boiler Replacement FAQs
How is a boiler sized?
A boiler should be sized to your home’s heating load and its radiators or baseboard, not just matched to the old boiler.
Can existing radiators or baseboard be reused?
Often, but their condition, output, piping and required water temperature need evaluation.
What happens to the existing zones?
They can often remain or be updated depending on pumps, valves, controls and the new design.
Does a new boiler need different venting?
It may. Vent material, route, termination and combustion-air requirements depend on the equipment.
How long does installation take?
Installation time depends on piping changes, venting, controls, access and permits. We give you the expected timeline on your written quote.
Is financing available?
Financing may be available for qualifying projects, with current terms confirmed during the estimate.
How often should a boiler be serviced?
Once a year, ideally in early fall before the heating season. An annual check covers the burner, safety controls, venting, system pressure and expansion tank, so small problems are caught before a cold night. Call (708) 515-4822 to schedule a boiler tune-up.
Boiler Replacement Across the Northwest Suburbs
Based in Streamwood and working throughout the surrounding communities. Pick your town to see local details, or call and we will confirm your address in a minute.
Not on the list? We cover much of the northwest suburbs, so call and we will confirm your address in a minute.
Plan a Better Boiler System
Tell us about the boiler, the zones and how heat is distributed through the home. We will start with an evaluation of the whole system.
- You get a scheduled window and the technician's name
- We evaluate piping, zones and venting, not just the boiler
- In-home estimates are free, with no obligation
Planning ahead? Call us at (708) 515-4822. We can answer sizing and scope questions before you book.
Request Service or a Free Replacement Estimate
Standard vs High-Efficiency vs Combi Boilers Compared
A standard cast-iron boiler is the simplest like-for-like replacement, a high-efficiency condensing boiler uses less gas, and a combination boiler heats the home and supplies hot water from one unit.
| Option | Efficiency | Venting | Hot water | Best for | Utility rebate |
|---|---|---|---|---|---|
| Standard (cast iron) | Typically 80% to 86% AFUE | Chimney or metal flue | Heat only, or paired with a separate water heater | Straight replacements and older radiator systems | None |
| High-efficiency condensing | 95% AFUE and up | PVC venting plus a condensate drain | Heat only, or paired with an indirect water heater | Lower gas bills on hot-water systems | Nicor Gas $350 for 95%+ AFUE |
| Combination (combi) | High-efficiency condensing | PVC venting plus a condensate drain | Heats the home and supplies on-demand hot water | Saving space by replacing the boiler and water heater with one unit | Nicor Gas $500 |
Rebates you may qualify for
2026 utility programs for Northern Illinois homes. Amounts checked October 2026.
| Program | Equipment | Rebate |
|---|---|---|
| Nicor Gas | Boiler, 95%+ AFUE | $350 |
| Nicor Gas | Combination boiler (heat + hot water) | $500 |
The federal 25C tax credit ended for systems installed after December 31, 2025. Illinois income-qualified HEAR heat pump rebates (up to $8,000) are not available yet as of October 2026, and projects finished before the program opens will not qualify. We confirm the current status on your written quote. ComEd discounts come off your invoice when a ComEd heat pump-trained contractor installs qualifying equipment. Nicor Gas rebates require qualifying equipment and Nicor’s rebate application. Programs can change, so we confirm what your home qualifies for on your written quote. Programs and amounts can change, so confirm current details on the utility sites before you buy. Official details: Nicor Gas rebates · ComEd heat pump discounts.
Licensed, certified and accredited
- Lennox Premier Dealer
- NATE-certified technicians
- EPA Section 608 certified
- BBB Accredited Business
- Licensed business in the Village of Streamwood
- Registered Illinois LLC
- Fully insured